Speed and Performance Comparison
The CFexpress Type B card dominates in raw performance with read speeds up to 1,700 MB/s and write speeds up to 1,200 MB/s, making it ideal for 8K video recording and high-resolution photography. The microSD Ultra offers more modest speeds around 120 MB/s read, sufficient for 4K video and everyday storage needs but significantly slower for professional workflows.
Compatibility and Use Cases
The microSD card wins on versatility, working with smartphones, tablets, action cameras, drones, and Nintendo Switch consoles. CFexpress Type B requires specialized slots found primarily in high-end cameras like Canon R5, Nikon Z9, and professional video equipment. Consider your device ecosystem before choosing.
Durability and Build Quality
Both cards feature robust construction, but the CFexpress card is built to withstand more extreme conditions with better heat dissipation for sustained high-speed recording. The microSD card, while durable, may throttle performance during extended 4K recording sessions due to thermal limitations in its compact form factor.
